This is a clever rear seat idea. The folded bit seen hanging behind the top rear of the seat can be unhooked and clipped to the back of the seat to allow the seat/seats to fold forward in required.. Or as shown in the pic, it simply extends to make the boot cover longer.
I have this seating arrangement in my ZX and have found it usefull dozens of times, I love it.
Hmmm ... now I have to try to attache a pic again. (I did it to show my 'new' ZX on that thread) so here goes ....